Convert pixel number from RING ordering to NESTED ordering.
Parameters : | nside : int, scalar or array-like
ipix : int, scalar or array-like
|
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Returns : | ipix : int, scalar or array-like
|
Examples
>>> import healpy as hp
>>> hp.ring2nest(16, 1504)
1130
>>> hp.ring2nest(2, range(10))
array([ 3, 7, 11, 15, 2, 1, 6, 5, 10, 9])
>>> hp.ring2nest([1, 2, 4, 8], 11)
array([ 11, 13, 61, 253])